Releasable stake for lumber-cars.



P. I. MARTIN.

RELEASABLE STAKE FOR LUMBER CARS.

APPLICATION FILED SEPT. 14, 1914v 1,1 22,966, Patented Dec. 29, 1914.

FIELI R]. Mel/ 1m $3M 7 EA 3 IHE NORRIS PETERS C0.. PHOTO'L/THOWASHINGTON. u. L

F. I. MARTIN.

RELEASABLE STAKE FOR LUMBER CARS.

APPLICATION FILED SEPT. 14, 1914.

Patnted Dec. 29, 1914.

3 SHEETSSHEET 2.

n w & m. n g w g M \k L k Q 6Q w Q. X Q w Y O 0 0 0 wk 1 0 wanes Aw THENORRIS PETERS CO F'HDTO LITE-i0. WASHINGTON. DV 6.

P. I. MARTIN.

RELEASABLE STAKE FOR LUMBER CARS.

APPLICATION FILED SEPT. 14, 1914.

1 1 22,96 6 Patented Dec. 29, 1914.

3 SHEETSSHEET 3.

f l 1; ,l W 8 Z Zfl x 1419mm F17. War U7 qWHw-eooeo THE HORN/5 PETERS coF'HD LITHO v r/Asm'm roN D c nnrrnp sfra'rns rarnnr orrrcn FREDERICK I.MARTIN, OF MELLEN, WISCONSIN.

BELEASABLE STAKE FOR LUMBER-CARS.

Application filed September 1 1914.

T 0 all whom it may concern:

Be it known that I, FREDERICK I. MARTIN, a citizen of the United States,residing at Mellon, in the county of Ashland and State of \Visconsin,have invented certain new and useful Improvements in Releasable Stakesfor Lumber-(Jars; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention has for its object to pro-' vide stakes for supportinglumber on railway cars and novel means for reliably securing the stakesin vertical position and permitting the same to be released from theside of the car opposite from that from which the lumber is unloaded.

Another object is the provision of a chain connecting the upperextremities of each pair of stakes and so arranged as to beautomatically disengaged when either stake of the pair is released.

With these and other objects in View, the invention consists in thenovel construction, arrangement and formation of parts as will behereinafter specifically described, claimed and illustrated in theaccompanying drawings, in which:

Figure 1 represents a transverse sectional view, partly broken away,through the body of a lumber car, showing the application thereto of thereleasable stakes. Fig. 2 represents a horizontal sectional View on theline 22 of Fig. 1. Fig. 3 represents a longitudinal horizontal sectionalview on the line 33 of Fig. 1. Fig. 4 represents an end elevation,partly broken away. Fig. 5 represents an enlarged transverse sectionalview on the line 55 of Fig. 2, and Fig. 6 represents a perspective viewof two of the clamping blocks detached.

Referring to the drawings in detail, wherein similar reference numeralsdesignate corresponding parts throughout the several views, the numeral6 indicates fragments of the longitudinal members of the body of arailway lumber or freight car. I beams 7 are arranged in pairs andsecured transversely of the longitudinal members 6 of the car and aresecured in spaced relation by straps 8 connecting said I-beams adjacenttheir free extremities and having recesses 10 in their outer edges. TheI-beams 7 are spaced sufficient distance apart to snugly receive thelower extremities of Specification of Letters Patent.

Patented Dec. 29, 1914:.

Serial No. 861,612.

stakes 11, the opposite extremities 12 of which are beveled and adaptedto engage the inclined upper faces of laterally projecting lugs 13carried by the longitudinal members 6 below each pair of I-beams 7.Adjacent their lower extremities the stakes 11 are partially seatedwithin the recesses 10 of the straps 8, and the beveled ends 12 thereofare provided with longitudinal recesses 15 adapted to receive the shanksof eye bolts 16. One end of a chain 17 is secured to the eye bolt 16 ofone of each pair of stakes 11, and the opposite end portion of saidchain is adjustably secured to the eye bolt 16 carried by the otherstake of the pair. The free end of the chain 17 is provided with a clip18 adapted to be adjustably secured to the links of said chainintermediate its ends.

A pair of clamping blocks 20 are slidably mounted between the webportions of each pair of I-beams 7 at each end of each pair of beams.The inner extremities of the blocks 21 are suitably recessed to receivethe lower extremities of the stakes 11 and the top and bottom edges ofsaid blocks are suitably shaped to fit between the upper and lowerhorizontal flanges of the I-beams 7. The free extremities of a cable 22are secured in the blocks 20 of each pair and the medial portion of saidcable extends inwardly between the I-beams 7 and is connected with achain 23 extended to a point nearly adjacent the opposite ends of the I-beams 7 and through an aperture formed in the web portion of one of saidI-beams.

Plates 24: are slidably mounted over the apertures in the oppositeextremities of the I-beams 7 receiving the chains 23 and are each formedwith apertures 25 connected by a slot 26 of considerably less width thanthe diameter of the apertures 25. The apertures 25 are of such widththat when registered with the apertures in the I-beams 7 the chains 23may freely pass therethrough, however, when said plates are moved so asto register the slots 26 with the openings in the I-beams 7 a link ofthe chain 23 is slipped into the slot 26 and thus locked against furtherlongitudinal movement. The plates 21 are operable at a distance from thecar by suitable chains 27 connected with the outer extremities of theplates.

In use, the stakes 11 are reliably secured in vertical operativeposition, as illustrated in full lines in Fig. l, by the clamping tingthe chain 23 to slip longitudinally under the pressure exerted upon thelower extremities of the stakes 11 and the blocks 20. WVhen the stakes11 along one side of the railway car are released, said stakes dropdownwardly and outwardly from the side of the car and in their downwardmovement the shanks of the eye bolts 16 slip out of the recesses 15 inthe upper extremities of the stakes 11 and thus permit the load oflumber to be unloaded.

What I claim is:

1. A device of the character described comprising a pair of beams, meansconnecting said beams adjacent their opposite extremities, stakesengaged against said connecting means, means for limiting the downwardmovement of said stakes, and

means for securing said stakes against said securing means includingpairs of blocks and connections between the blocks of each pair.

' 2. A device of the character described comprising a pair of beams, asupport for said beams, lugs carried by said supports having downwardlyand outwardly inclined upper faces, means connecting said beams adjacenttheir opposite extremities, stakes Copies of this patent may be obtainedfor five cents each, by addressing the Commissioner of Patents.

engaged upon the inclined faces of said lugs and against said connectingmeans, and means for securing said stakes in position including pairsofblocks, and means connecting said blocks.

3. A device of the character described comprising a support, a pair ofI-beams secured over said support, means connecting said beams adjacenttheir opposite extremities, a stake engaged against saidconnectingmeans, a pair of clamping blocks disposed between said beamsand movable against said stakes, a flexible member con necting saidblocks, and means at the end of said beam opposite from said blocks forsecuring said flexible member in adjusted position.

- 4. A device of the character described comprising a support, a pair ofI-beams secured upon said support in spaced relation,

means connecting said I-beams adjacent their opposite extremities, lugssecured to said supports and having downwardly and outwardly inclinedupper faces, stakes engaged upon the inclined faces of said lugs andagainst said connecting means, pairs of blocks movable against saidstakes, flexible means connecting the blocks of each pair and extendingthrough the web portions of said I-beams, means for securing saidflexible members in adjusted position, eye bolts positioned in the upperextremities of said stakes, and means adjustably connecting.

said eye bolts.

Intestimony whereof I afiix my signature in presence of two witnesses.

FREDERICK I. MARTIN. l/Vitnesses F. A. MCDONALD, OSCAR ANDERSON.

Washington, D. C. i

